﻿/*
 Problem 12.	Null Values Arithmetic
Create a program that assigns 
        null values to 
        
        an integer and 
        to a double variable. 
        
    Try to print these variables at the console. 
    Try to add some number or the null literal to these variables and print the result.

 */

using System;

class NullValuesArithmetic
{
    static void Main()
    {
        int? intNumber = null;
        double? doubleNumber = null;

        Console.WriteLine(intNumber);
        Console.WriteLine(doubleNumber);

        intNumber = 100;
        doubleNumber = 2.33d;

        Console.WriteLine();
        Console.WriteLine(intNumber);
        Console.WriteLine(doubleNumber);
    }
}